====================================== | [ 24.526345][ T372] ------------[ cut here ]------------ | [ 24.526604][ T372] RTNL: assertion failed at net/core/link_watch.c (59) | [ 24.526865][ T372] WARNING: CPU: 3 PID: 372 at net/core/link_watch.c:59 default_operstate (net/core/link_watch.c:59 (discriminator 3)) | [ 24.527205][ T372] Modules linked in: 8021q vrf veth [ 24.527682][ T372] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 24.527919][ T372] RIP: 0010:default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 24.528114][ T372] Code: 83 e4 01 0f 85 03 ff ff ff c6 05 2e 39 3a 02 01 90 ba 3b 00 00 00 48 c7 c6 00 2b 57 b3 48 c7 c7 40 2b 57 b3 e8 13 95 ea fd 90 <0f> 0b 90 90 e9 d9 fe ff ff 48 89 ef e8 d1 bb 71 fe e9 f7 fd ff ff All code ======== 0: 83 e4 01 and $0x1,%esp 3: 0f 85 03 ff ff ff jne 0xffffffffffffff0c 9: c6 05 2e 39 3a 02 01 movb $0x1,0x23a392e(%rip) # 0x23a393e 10: 90 nop 11: ba 3b 00 00 00 mov $0x3b,%edx 16: 48 c7 c6 00 2b 57 b3 mov $0xffffffffb3572b00,%rsi 1d: 48 c7 c7 40 2b 57 b3 mov $0xffffffffb3572b40,%rdi 24: e8 13 95 ea fd call 0xfffffffffdea953c 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: e9 d9 fe ff ff jmp 0xffffffffffffff0c 33: 48 89 ef mov %rbp,%rdi 36: e8 d1 bb 71 fe call 0xfffffffffe71bc0c 3b: e9 f7 fd ff ff jmp 0xfffffffffffffe37 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: e9 d9 fe ff ff jmp 0xfffffffffffffee2 9: 48 89 ef mov %rbp,%rdi c: e8 d1 bb 71 fe call 0xfffffffffe71bbe2 11: e9 f7 fd ff ff jmp 0xfffffffffffffe0d [ 24.528758][ T372] RSP: 0018:ffffc900009271c8 EFLAGS: 00010286 [ 24.528992][ T372] RAX: 0000000000000000 RBX: ffff888002b01000 RCX: 1ffffffff67bb58c [ 24.529279][ T372] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001 [ 24.529553][ T372] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff67bb58c [ 24.529821][ T372] R10: 0000000000000003 R11: ffff888009728040 R12: 0000000000000000 [ 24.530097][ T372] R13: dffffc0000000000 R14: ffffc90000926cb0 R15: ffff888002b015b0 [ 24.530381][ T372] FS: 00007f4ce2696800(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000 [ 24.530695][ T372] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.530926][ T372] CR2: 00000000004e55a0 CR3: 000000000c22a002 CR4: 0000000000772ef0 [ 24.531214][ T372] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.531484][ T372] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.531757][ T372] PKRU: 55555554 [ 24.531899][ T372] Call Trace: [ 24.532043][ T372] [ 24.532141][ T372] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 24.532338][ T372] ? __warn (kernel/panic.c:748) [ 24.532484][ T372] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 24.532668][ T372] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 24.532848][ T372] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 24.533033][ T372] ? handle_bug (arch/x86/kernel/traps.c:285) [ 24.533174][ T372] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) [ 24.533368][ T372] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) [ 24.533560][ T372] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 24.533742][ T372] ? default_operstate (net/core/link_watch.c:59 (discriminator 3)) [ 24.533922][ T372] rfc2863_policy (net/core/link_watch.c:78) [ 24.534109][ T372] linkwatch_do_dev (net/core/link_watch.c:180) [ 24.534966][ T372] netdev_run_todo (net/core/dev.c:10894 (discriminator 2)) [ 24.535155][ T372] ? __pfx_netdev_run_todo (net/core/dev.c:10867) [ 24.535397][ T372] rtnl_dellink (net/core/rtnetlink.c:3528) [ 24.535584][ T372] ? __pfx_rtnl_dellink (net/core/rtnetlink.c:3484) [ 24.535818][ T372] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 24.536003][ T372] ? __lock_release (kernel/locking/lockdep.c:5525) [ 24.536199][ T372] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6900) [ 24.536384][ T372] ? __pfx___lock_release (kernel/locking/lockdep.c:5501) [ 24.536568][ T372] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 24.536757][ T372] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/rtnetlink.c:6900) [ 24.536943][ T372] ? __pfx_rtnl_dellink (net/core/rtnetlink.c:3484) [ 24.537128][ T372] rtnetlink_rcv_msg (net/core/rtnetlink.c:6902) [ 24.537324][ T372] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6805) [ 24.537507][ T372] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 24.537686][ T372] ? mark_lock (kernel/locking/lockdep.c:4727 (discriminator 3)) [ 24.537831][ T372] ? __lock_acquire (kernel/locking/lockdep.c:5226) [ 24.538017][ T372] netlink_rcv_skb (net/netlink/af_netlink.c:2543) [ 24.538213][ T372] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6805) [ 24.538395][ T372] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2520) [ 24.538593][ T372] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) [ 24.538775][ T372] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) [ 24.538960][ T372] netlink_unicast (net/netlink/af_netlink.c:1322 net/netlink/af_netlink.c:1348) [ 24.539146][ T372] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1333) [ 24.539348][ T372] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 24.539534][ T372] netlink_sendmsg (net/netlink/af_netlink.c:1892) [ 24.539717][ T372] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1811) [ 24.539907][ T372] ____sys_sendmsg (net/socket.c:711 net/socket.c:726 net/socket.c:2594) [ 24.540098][ T372] ? __pfx_____sys_sendmsg (net/socket.c:2540) [ 24.540289][ T372] ? __pfx_copy_msghdr_from_user (net/socket.c:2520) [ 24.540523][ T372] ___sys_sendmsg (net/socket.c:2650) [ 24.540711][ T372] ? __pfx____sys_sendmsg (net/socket.c:2637) [ 24.540902][ T372] ? kasan_save_stack (mm/kasan/common.c:49) [ 24.541080][ T372] ? kasan_save_stack (mm/kasan/common.c:48) [ 24.541269][ T372] ? __kasan_record_aux_stack (mm/kasan/generic.c:544) [ 24.541450][ T372] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:87 ./arch/x86/include/asm/irqflags.h:123 kernel/rcu/tree.c:3087) [ 24.541674][ T372] ? __x64_sys_close (fs/open.c:1557 fs/open.c:1539 fs/open.c:1539) [ 24.541854][ T372] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 24.542036][ T372] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 24.542275][ T372] ? __lock_acquire (kernel/locking/lockdep.c:5226) [ 24.542466][ T372] ? find_held_lock (kernel/locking/lockdep.c:5339) [ 24.542666][ T372] ? __lock_release (kernel/locking/lockdep.c:5525) [ 24.542844][ T372] ? __virt_addr_valid (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:962 ./include/linux/mmzone.h:2058 arch/x86/mm/physaddr.c:65) [ 24.543025][ T372] ? __pfx___lock_release (kernel/locking/lockdep.c:5501) [ 24.543215][ T372] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5814) [ 24.543406][ T372] __sys_sendmsg (net/socket.c:2680) [ 24.543596][ T372] ? __pfx___sys_sendmsg (net/socket.c:2665) [ 24.543773][ T372] ? __pfx_slab_free_after_rcu_debug (mm/slub.c:4643) [ 24.544015][ T372] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 24.544211][ T372] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 24.544431][ T372] RIP: 0033:0x7f4ce28a29a7 [ 24.544619][ T372] Code: 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10 All code ======== 0: 0a 00 or (%rax),%al 2: f7 d8 neg %eax 4: 64 89 02 mov %eax,%fs:(%rdx) 7: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax e: eb b9 jmp 0xffffffffffffffc9 10: 0f 1f 00 nopl (%rax) 13: f3 0f 1e fa endbr64 17: 64 8b 04 25 18 00 00 mov %fs:0x18,%eax 1e: 00 1f: 85 c0 test %eax,%eax 21: 75 10 jne 0x33 23: b8 2e 00 00 00 mov $0x2e,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 51 ja 0x83 32: c3 ret 33: 48 83 ec 28 sub $0x28,%rsp 37: 89 54 24 1c mov %edx,0x1c(%rsp) 3b: 48 89 74 24 10 mov %rsi,0x10(%rsp) Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 51 ja 0x59 8: c3 ret 9: 48 83 ec 28 sub $0x28,%rsp d: 89 54 24 1c mov %edx,0x1c(%rsp) 11: 48 89 74 24 10 mov %rsi,0x10(%rsp) [ 24.545258][ T372] RSP: 002b:00007fff70d2e828 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 24.545535][ T372] RAX: ffffffffffffffda RBX: 00007fff70d2ef50 RCX: 00007f4ce28a29a7 [ 24.545803][ T372] RDX: 0000000000000000 RSI: 00007fff70d2e890 RDI: 0000000000000005 [ 24.546079][ T372] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 24.546357][ T372] R10: 00007f4ce2760ef8 R11: 0000000000000246 R12: 0000000000000002 Finger prints: default_operstate:rfc2863_policy:linkwatch_do_dev:netdev_run_todo:rtnl_dellink